*****ing Airtime

Well today i loaded R55+R29 which should have covered my airtime advanced airtime and should have a balance of about \R25 or so but i had a balance of R0 then i loaded another R29 balance R0 spoke to the idiot in twitter they say no refund etc i explained them i need my airtime they can help me because they must be sleeping around, then i waited the whole day no airtime i took advance R5 cause i cant be wasting my money then i bought R12 it deducted my R6 which left me the balance of R6.03 which is about right i was happy so i loaded R55 whihc suppose to be R61 but no it gave me a balance o R35 now serious this is not the first time its been happening for long i think i lost over R300 worth of airtime so please sort this out we are 11years with you man seriously, i even told thta idiot on twitter to cancel any services if any is active I WANT MY AIRTIME TOMORROW COD OR IM NOT PAYING THIS MONTH CONTRACTS THATS FOR SURE CAUSE WE PAY ON TIME AND NOW YOU *****ING FROM ME SO **** OFFF